By the international ISO9001-2002 quality system certification enterprises. Pressure Vessels tube manufacturing license, the power of the certification. Shipping Enterprises certification is the first peer through one of the certified businesses. Change their existing production process, independent R & D and production of wear-resistant type variable, wear-resistant steel using new materials through special hardening process, the products are 3-5 times the original variable life, filled a gap in our country.
